Pet collar



FIG. 1 is a front elevational view of a pet collar, showing our new design;

FIG. 2 is an enlarged fragmentary front elevational view thereof, with parts in an open position;

FIG. 3 is a fragmentary side elevational view thereof, as seen from the bottom of FIG. 2; and

FIG. 4 is a fragmentary rear and top perspective view thereof, with parts in an open position. 

The ornamental design for a pet collar, as shown and described. 